Featuring a reliable waterproof design, these lights have a bulb replaceable capsule that protects the bulbs from corrosion and thermal shock but still allows for easy access for bulb replacement. These lights meet FMVSS/CMVSS 108 requirements for trailers over 80" wide when properly mounted.8.03" x 2.94" x 2.83" Best Selling Items Designed for 2' or 4' Wide x 4' High Areas Minimum Inventory for Maximum Turn Includes Reorder Cards